API to retrieve the KeyId
Save the KeyId
Activation codes generated from Satispay Dashboard (or provided manually for Sandbox Account) are disposable, then the KeyId must be saved after its creation.
Formatting the Public key
Make sure that the public_key has the newline control character
\nfor each line of the content. See the example on the right.
Production VS Sandbox account
Activation codes generated for the Production account only work on Production endpoints, while activation codes generated for the Sandbox account only work on Sandbox endpoints.